ID

VAR-202102-1488

CVE

CVE-2021-23841

TITLE

OpenSSL  In  NULL  Pointer dereference vulnerability

DESCRIPTION

The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). There is no information about this vulnerability at present. Please keep an eye on CNNVD or manufacturer announcements. Nessus Agent versions 7.2.0 up to and including 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged malicious user to obtain the token. Additionally, one third-party component (OpenSSL) was found to contain vulnerabilities, and updated versions have been made available by the provider. Bugs fixed (https://bugzilla.redhat.com/): 1944888 - CVE-2021-21409 netty: Request smuggling via content-length header 2004133 - CVE-2021-37136 netty-codec: Bzip2Decoder doesn't allow setting size restrictions for decompressed data 2004135 - CVE-2021-37137 netty-codec: SnappyFrameDecoder doesn't restrict chunk length and may buffer skippable chunks in an unnecessary way 2030932 - CVE-2021-44228 log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value 5. JIRA issues fixed (https://issues.jboss.org/): LOG-1971 - Applying cluster state is causing elasticsearch to hit an issue and become unusable 6. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: openssl security update Advisory ID: RHSA-2021:3798-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3798 Issue date: 2021-10-12 CVE Names: CVE-2021-23840 CVE-2021-23841 ===================================================================== 1. Summary: An update for openssl is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library. Security Fix(es): * openssl: integer overflow in CipherUpdate (CVE-2021-23840) * openssl: NULL pointer dereference in X509_issuer_and_serial_hash() (CVE-2021-23841) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted. 5. Bugs fixed (https://bugzilla.redhat.com/): 1930310 - CVE-2021-23841 openssl: NULL pointer dereference in X509_issuer_and_serial_hash() 1930324 - CVE-2021-23840 openssl: integer overflow in CipherUpdate 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: openssl-1.0.2k-22.el7_9.src.rpm x86_64: openssl-1.0.2k-22.el7_9.x86_64.rpm openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-libs-1.0.2k-22.el7_9.i686.rpm openssl-libs-1.0.2k-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-devel-1.0.2k-22.el7_9.i686.rpm openssl-devel-1.0.2k-22.el7_9.x86_64.rpm openssl-perl-1.0.2k-22.el7_9.x86_64.rpm openssl-static-1.0.2k-22.el7_9.i686.rpm openssl-static-1.0.2k-22.el7_9.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: openssl-1.0.2k-22.el7_9.src.rpm x86_64: openssl-1.0.2k-22.el7_9.x86_64.rpm openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-libs-1.0.2k-22.el7_9.i686.rpm openssl-libs-1.0.2k-22.el7_9.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-devel-1.0.2k-22.el7_9.i686.rpm openssl-devel-1.0.2k-22.el7_9.x86_64.rpm openssl-perl-1.0.2k-22.el7_9.x86_64.rpm openssl-static-1.0.2k-22.el7_9.i686.rpm openssl-static-1.0.2k-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: openssl-1.0.2k-22.el7_9.src.rpm ppc64: openssl-1.0.2k-22.el7_9.ppc64.rpm openssl-debuginfo-1.0.2k-22.el7_9.ppc.rpm openssl-debuginfo-1.0.2k-22.el7_9.ppc64.rpm openssl-devel-1.0.2k-22.el7_9.ppc.rpm openssl-devel-1.0.2k-22.el7_9.ppc64.rpm openssl-libs-1.0.2k-22.el7_9.ppc.rpm openssl-libs-1.0.2k-22.el7_9.ppc64.rpm ppc64le: openssl-1.0.2k-22.el7_9.ppc64le.rpm openssl-debuginfo-1.0.2k-22.el7_9.ppc64le.rpm openssl-devel-1.0.2k-22.el7_9.ppc64le.rpm openssl-libs-1.0.2k-22.el7_9.ppc64le.rpm s390x: openssl-1.0.2k-22.el7_9.s390x.rpm openssl-debuginfo-1.0.2k-22.el7_9.s390.rpm openssl-debuginfo-1.0.2k-22.el7_9.s390x.rpm openssl-devel-1.0.2k-22.el7_9.s390.rpm openssl-devel-1.0.2k-22.el7_9.s390x.rpm openssl-libs-1.0.2k-22.el7_9.s390.rpm openssl-libs-1.0.2k-22.el7_9.s390x.rpm x86_64: openssl-1.0.2k-22.el7_9.x86_64.rpm openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-devel-1.0.2k-22.el7_9.i686.rpm openssl-devel-1.0.2k-22.el7_9.x86_64.rpm openssl-libs-1.0.2k-22.el7_9.i686.rpm openssl-libs-1.0.2k-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: openssl-debuginfo-1.0.2k-22.el7_9.ppc.rpm openssl-debuginfo-1.0.2k-22.el7_9.ppc64.rpm openssl-perl-1.0.2k-22.el7_9.ppc64.rpm openssl-static-1.0.2k-22.el7_9.ppc.rpm openssl-static-1.0.2k-22.el7_9.ppc64.rpm ppc64le: openssl-debuginfo-1.0.2k-22.el7_9.ppc64le.rpm openssl-perl-1.0.2k-22.el7_9.ppc64le.rpm openssl-static-1.0.2k-22.el7_9.ppc64le.rpm s390x: openssl-debuginfo-1.0.2k-22.el7_9.s390.rpm openssl-debuginfo-1.0.2k-22.el7_9.s390x.rpm openssl-perl-1.0.2k-22.el7_9.s390x.rpm openssl-static-1.0.2k-22.el7_9.s390.rpm openssl-static-1.0.2k-22.el7_9.s390x.rpm x86_64: openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-perl-1.0.2k-22.el7_9.x86_64.rpm openssl-static-1.0.2k-22.el7_9.i686.rpm openssl-static-1.0.2k-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: openssl-1.0.2k-22.el7_9.src.rpm x86_64: openssl-1.0.2k-22.el7_9.x86_64.rpm openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-devel-1.0.2k-22.el7_9.i686.rpm openssl-devel-1.0.2k-22.el7_9.x86_64.rpm openssl-libs-1.0.2k-22.el7_9.i686.rpm openssl-libs-1.0.2k-22.el7_9.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: openssl-debuginfo-1.0.2k-22.el7_9.i686.rpm openssl-debuginfo-1.0.2k-22.el7_9.x86_64.rpm openssl-perl-1.0.2k-22.el7_9.x86_64.rpm openssl-static-1.0.2k-22.el7_9.i686.rpm openssl-static-1.0.2k-22.el7_9.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-23840 https://access.redhat.com/security/cve/CVE-2021-23841 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYWWqjtzjgjWX9erEAQj4lg/+IFxqmMQqLSvyz8cKUAPgss/+/wFMpRgh ZZxYBQQ0cBFfWFlROVLaRdeiGcZYkyJCRDqy2Yb8YO1A4PnSOc+htLFYmSmU2kcm QLHinOzGEZo/44vN7Qsl4WhJkJIdlysCwKpkkOCUprMEnhlWMvja2eSSG9JLH16d RqGe4AsJQLKSKLgmhejCOqxb9am+t9zBW0zaZHP4UR52Ju1rG5rLjBJ85Gcrmp2B vp/GVEQ/Asid4MZA2WTx+s6wj5Dt7JOdLWrUbcYAC0I8oPWbAoZJTfPkM7S6Xv+U 68iruVFTh74IkCbQ+SNLoYjiDAVJqtAVRVBha7Fd3/gWR6aJLLaqluLRGvd0mwXY pohCS0ynuMQ9wtYOJ3ezSVcBN+/d9Hs/3s8RWQTzrNG6jtBe57H9/tNkeSVFSVvu PMKXsUoOrIUE2HCflJytDB9wkQmsWxiZoH/xVlrtD0D11egZ4EWjJL6x+xtCTAkT u67CAwsCKxxCeNmz42uBtXSwFXoUapJnsviGzAx247T2pyuXlYMYHlsOy7CtBvIk jEEosCMM72UyXO4XsYTXc0jM3ze6iQTcF9irwhy+X+rTB4IXBubdUEoT0jnKlwfI BQvoPEBlcG+f0VU8BL+FCOosvM0ZqC7KGGOwJLoG1Vqz8rbtmhpcmNAOvzUiHdm3 T4OjSl1NzQQ= =Taj2 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . Summary: Red Hat Advanced Cluster Management for Kubernetes 2.2.10 General Availability release images, which provide one or more container updates and bug fixes. Description: Red Hat Advanced Cluster Management for Kubernetes 2.2.10 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console — with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which provide security fixes, bug fixes and container upgrades. See the following Release Notes documentation, which will be updated shortly for this release, for additional details about this release: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.2/html/release_notes/ Security fixes: * CVE-2021-3795 semver-regex: inefficient regular expression complexity * CVE-2021-23440 nodejs-set-value: type confusion allows bypass of CVE-2019-10747 Related bugs: * RHACM 2.2.10 images (Bugzilla #2013652) 3. Bugs fixed (https://bugzilla.redhat.com/): 2004944 - CVE-2021-23440 nodejs-set-value: type confusion allows bypass of CVE-2019-10747 2006009 - CVE-2021-3795 semver-regex: inefficient regular expression complexity 2013652 - RHACM 2.2.10 images 5. ========================================================================== Ubuntu Security Notice USN-4745-1 February 23, 2021 openssl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM Summary: Several security issues were fixed in OpenSSL. (CVE-2021-23841) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: libssl1.0.0 1.0.1f-1ubuntu2.27+esm2 Ubuntu 12.04 ESM: libssl1.0.0 1.0.1-4ubuntu5.45 After a standard system update you need to reboot your computer to make all the necessary changes. Additional details can be found in the upstream advisories https://www.openssl.org/news/secadv/20191206.txt and https://www.openssl.org/news/secadv/20210216.txt . For the stable distribution (buster), these problems have been fixed in version 1.1.1d-0+deb10u5. For the detailed security status of openssl please refer to its security tracker page at: https://security-tracker.debian.org/tracker/openssl Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmAtHDpfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0SYCg/9HRfTx/x8jaG8pn8kcPmUiSs+WkMBXmQeg97Gf6NLeflYczwtZ9MGWAAj J9R72BqppoSGaI4MPgUQPRDRHclktJOxBkICyiYL35G18x0iFz352rfHegq9rzVe VxJAXh3Xo6hA/SX046rjh+gJU63fgiE4Wy9T1D9y9A582FHfqhNFpEbWyzA871hG nDFabpyvRltEC/XXu5pejqU9cguc4wF6pVjMffF1ikV6srAFPFO14v5aYYTWHEe1 D5cOUe6ckFIJBHYO4NEldlfRN1OVUZUMERQwjkfJ6RnwOxzN9dAdnhle+nqgeC7P GwyVHTNIIhNOpjo24j0d13npJqdBvpXygG8TVDzRGm70SgMsizIm/b8ID9yzQjXH 45ziZZKLnLDDE55v62bUZ7KOe3DZYp/dElZ6mt/xKikC10GEOv1exsaB12s4LlDx +7VF2U3nAer//G2LkGAPkbNAT1RC1uibnivyed3uHpUwFewE0fsdaoHtwFPPYDNp Y7dyMI+SpAF1/6PW7kBqgHtyp9GAp2fcldV1uLmr9FKoBASvemkReHH1/eDzPqaA xKzJ67vi9vX3IKtEz+T/EftZ5VDb/JW/f5EPsLNKjQJomRaQRr9EnYMVFCERVwvk IMCzTgoed90pMSWyfO7BkywXMk4t14IeV9PhGVTfCrdpr4c2QC4= =hM2Z -----END PGP SIGNATURE----- . This issue was reported to OpenSSL on 15th December 2020 by Tavis Ormandy from Google. The fix was developed by Matt Caswell. Incorrect SSLv2 rollback protection (CVE-2021-23839) ==================================================== Severity: Low OpenSSL 1.0.2 supports SSLv2. If a client attempts to negotiate SSLv2 with a server that is configured to support both SSLv2 and more recent SSL and TLS versions then a check is made for a version rollback attack when unpadding an RSA signature. Clients that support SSL or TLS versions greater than SSLv2 are supposed to use a special form of padding. A server that supports greater than SSLv2 is supposed to reject connection attempts from a client where this special form of padding is present, because this indicates that a version rollback has occurred (i.e. both client and server support greater than SSLv2, and yet this is the version that is being requested). The implementation of this padding check inverted the logic so that the connection attempt is accepted if the padding is present, and rejected if it is absent. This means that such as server will accept a connection if a version rollback attack has occurred. Further the server will erroneously reject a connection if a normal SSLv2 connection attempt is made. In order to be vulnerable a 1.0.2 server must: 1) have configured SSLv2 support at compile time (this is off by default), 2) have configured SSLv2 support at runtime (this is off by default), 3) have configured SSLv2 ciphersuites (these are not in the default ciphersuite list) OpenSSL 1.1.1 does not have SSLv2 support and therefore is not vulnerable to this issue. The underlying error is in the implementation of the RSA_padding_check_SSLv23() function. This also affects the RSA_SSLV23_PADDING padding mode used by various other functions. Although 1.1.1 does not support SSLv2 the RSA_padding_check_SSLv23() function still exists, as does the RSA_SSLV23_PADDING padding mode. However since there is no support for the SSLv2 protocol in 1.1.1 this is considered a bug and not a security issue in that version. This issue was reported to OpenSSL on 21st January 2021 by D. Katz and Joel Luellwitz from Trustwave. The fix was developed by Matt Caswell. Integer overflow in CipherUpdate (CVE-2021-23840) ================================================= Severity: Low Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. This issue was reported to OpenSSL on 13th December 2020 by Paul Kehrer. The fix was developed by Matt Caswell. References ========== URL for this Security Advisory: https://www.openssl.org/news/secadv/20210216.txt Note: the online version of the advisory may be updated with additional details over time. For details of OpenSSL severity classifications please see: https://www.openssl.org/policies/secpolicy.html

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

code problem

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2024-11-20T20:46:00.979000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE